Lemon Tetra tank mates
Transparent-bodied tetra with yellow fin edges. Colour develops at full saturation only in soft water with good nutrition and planted background.
Lists below are built from this species record (safest, best with, risky, unsafe) — each link opens a pair-level check, not a guarantee.
Best tank mates (on file)
Merged from conservative safest and best with fields — de-duplicated by species.
The Lemon Tetra profile lists Corydoras Catfish as both safe and a recommended pairing. Corydoras Catfish schools in groups of 6 or more, so plan room for the whole group rather than one fish. Corydoras Catfish swims in the bottom zone while Lemon Tetra stays in the middle, so the two will not crowd the same water column.
The Lemon Tetra profile lists Ember Tetra as both safe and a recommended pairing. Ember Tetra schools in groups of 8 or more, so plan room for the whole group rather than one fish.
The Lemon Tetra profile lists Harlequin Rasbora as both safe and a recommended pairing. Harlequin Rasbora schools in groups of 6 or more, so plan room for the whole group rather than one fish.
The Lemon Tetra profile lists Neon Tetra as both safe and a recommended pairing. Neon Tetra schools in groups of 6 or more, so plan room for the whole group rather than one fish.
Risky or situational
From risky tank mates and broad avoid with (excluding “unsafe” below). May work with species-only setups, more water, or mature systems — read the pair page.
None on file beyond the safe list.
Fish to avoid with Lemon Tetra
From the unsafe list — predation, aggression, or space rules on this profile.
Oscar reaches 35cm and is flagged predatory. Lemon Tetra at 4cm is prey-sized for it. Oscar needs at least 300L, far above the 60L minimum for Lemon Tetra. The tank that houses one stresses the other. Oscar is rated aggressive and Lemon Tetra is rated peaceful. No community-style planning carries that gap.
Jack Dempsey reaches 25cm and is flagged predatory. Lemon Tetra at 4cm is prey-sized for it. Jack Dempsey needs at least 200L, far above the 60L minimum for Lemon Tetra. The tank that houses one stresses the other. Jack Dempsey is rated aggressive and Lemon Tetra is rated peaceful. No community-style planning carries that gap.
Green Terror reaches 30cm and is flagged predatory. Lemon Tetra at 4cm is prey-sized for it. Green Terror needs at least 300L, far above the 60L minimum for Lemon Tetra. The tank that houses one stresses the other. Green Terror is rated aggressive and Lemon Tetra is rated peaceful. No community-style planning carries that gap.
Angelfish reaches 20cm and is flagged predatory. Lemon Tetra at 4cm is prey-sized for it. Angelfish needs at least 150L, far above the 60L minimum for Lemon Tetra. The tank that houses one stresses the other.
Tiger Barb conflicts with Lemon Tetra on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.
Betta conflicts with Lemon Tetra on temperament, predation, or footprint. The juvenile size in a shop tank is not the figure that matters here.
Discus needs at least 200L, far above the 60L minimum for Lemon Tetra. The tank that houses one stresses the other.
Tank size and groups
- Published minimum for Lemon Tetra: 60L — group minimum 6 (schooling).
- Compatibility changes when the tank is too short for turning, too little for a real school, or too warm for one species and not the other — that is why pair checks include tank context, not only temperament.
- Nearest litre hub to this minimum: 60L hub.
Plan before you buy
Pair checks for every mix, then multi-species stocking in the builder.
Filtration & heating
A 60L minimum tank for Lemon Tetra needs a filter rated for at least 240L/hr turnover and a heater maintaining 22–28°C.
Similar fish (same category)
- Beckford Pencilfish — min 60L
- Black Neon Tetra — min 60L
- Bloodfin tetra — min 60L
- Cardinal Tetra — min 60L
- Glowlight Tetra — min 60L
- Green neon tetra — min 60L
- Silver Tip Tetra — min 60L
- X-ray tetra — min 60L